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Bucket Elevator Ventilation

Belt Speed
Less than 200 fpm 350 cfm/ft of belt width. Not less than 150 cfm/ft2 of opening.
Over 200 fpm 500 cfm/ft of belt width. Not less than 200 cfm/ft2 of opening.

From American Conference of Governmental Industrial Hygienists (ACGIH®), Date: 1-91, Figure VS-50-01, Industrial Ventilation : A Manual of Recommended Practice, 23rd Edition. Copyright 1998. Reprinted with permission.

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